Timing sampling device for gas turbine unit

Abstract

The utility model belongs to the field of gas turbine units, and discloses a timing sampling device for a gas turbine unit, which comprises a shell mechanism and a sampling mechanism mounted at one end of the shell mechanism, the shell mechanism comprises a shell body, and the sampling mechanism comprises a connecting pipe fixedly connected with the shell body. A first through hole is formed in the first limiting plate, a communicating mechanism is arranged in the shell mechanism and comprises a communicating cylinder rotationally installed on one side of the connecting pipe, a second limiting plate is fixedly installed at one end of the communicating cylinder, and a second through hole is formed in the second limiting plate; the second through hole is indirectly communicated with the first through hole, that is, the connecting pipe is communicated with the communicating cylinder, smoke and water vapor can indirectly enter the communicating cylinder, and the amount and time of a sample entering the communicating cylinder at a time can be adjusted by adjusting the rotating speed of the communicating cylinder, so that the inspection requirement is met, small-amount and multi-time timing sampling is facilitated, and energy waste is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of gas turbine units, and specifically relates to a timing sampling device for gas turbine units. Background Art

[0002] A coal-fired power generation unit is a mechanical device that converts the chemical energy of fossil fuels such as coal into electrical energy. After coal is burned, flue gas is generated. Flue gas is a mixture of gas and dust, and is a major cause of air pollution. The composition of flue gas is very complex. The gas includes water vapor, sulfur dioxide, nitrogen, oxygen, carbon monoxide, carbon dioxide, hydrocarbons, nitrogen oxides, etc. The dust includes ash of the fuel, coal particles, oil droplets, and high-temperature pyrolysis products, etc.

[0003] The patent publication number CN220490503U discloses a flue gas sampling device for a coal-fired boiler of a coal-fired power generation unit, including a sampling shell. By the combined use of the sampling shell, a spiral heat exchange tube, an air suction cylinder, a sliding rod, an electric push rod, and a piston plate, the flue gas can be sampled. By setting the spiral heat exchange tube, the travel distance of the flue gas can be increased, and the heat dissipation efficiency can be improved. By the combined use of a positioning shell and a fan, the spiral heat exchange tube can be cooled. By the combined use of an air outlet and a first ventilation net, the heat inside the cooling shell can be discharged. By setting the second ventilation net, larger particles in the flue gas can be intercepted. By the combined use of a through groove and an air outlet pipe, when the telescopic end of the electric push rod drives the piston plate to contract, when the piston plate passes over the through groove, the sampled flue gas can be discharged from the air outlet pipe, and the next detection operation can be carried out.

[0004] The current detection device needs to collect flue gas and water vapor in small amounts and multiple times. Although the above patent can reduce the temperature, the sampling device is in an always-on state, and a large amount of flue gas and water vapor are inhaled at one time, resulting in energy waste. Content of the Utility Model

[0005] Aiming at the above problems existing in the prior art, the purpose of the utility model is to sample flue gas and water vapor in small amounts and multiple times, reducing energy waste. For this reason, a timing sampling device for gas turbine units is provided.

[0006] To solve the above problems, the technical solution adopted by the present utility model is as follows: A timing sampling device for a gas turbine unit, comprising a housing mechanism and a sampling mechanism installed at one end of the housing mechanism. The housing mechanism includes a housing body, and the sampling mechanism includes a connecting pipe fixedly connected to the housing body. One end of the connecting pipe is connected and installed with a sampling pipe, and one end of the connecting pipe is fixedly installed with a heat conducting plate. A first limiting plate is fixedly installed in the middle of the heat conducting plate, and a first through hole is opened on the first limiting plate. A communicating mechanism is arranged inside the housing mechanism. The communicating mechanism includes a communicating cylinder rotatably installed on one side of the connecting pipe. One end of the communicating cylinder is fixedly installed with a second limiting plate, and a second through hole is opened on the second limiting plate.

[0007] Preferably, a motor is fixedly installed on the inner wall of the housing body, and a first gear is fixedly installed at the output end of the motor. A sleeve is also fixedly installed on the inner wall of the housing body.

[0008] Preferably, the communicating mechanism further includes a second gear fixedly installed on one side of the communicating cylinder, and the second gear is meshed and connected with the first gear.

[0009] Preferably, a stabilizing cylinder is fixedly installed at one end of the second gear, and one end of the stabilizing cylinder is rotatably connected with the sleeve.

[0010] Preferably, fan blades are fixedly installed on the outer circumference of the communicating cylinder, and an air outlet pipe is connected and installed at the lower end of the communicating cylinder.

[0011] Preferably, a pushing mechanism is further arranged inside the housing mechanism. The pushing mechanism includes a piston head slidably installed inside the communicating cylinder. One end of the piston head is fixedly installed with a screw rod, and the screw rod is slidably connected with the sleeve.

[0012] Preferably, a special-shaped sliding block is fixedly installed on the outer circumference of one end of the screw rod, and the special-shaped sliding block is in threaded connection with the inner wall of the second gear. An elastic member is jointly installed between the piston head and the sleeve.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] 1. This device is installed at the gas turbine unit, driving the communicating cylinder to rotate at a constant speed. The second through hole is intermittently communicated with the first through hole, that is, the connecting pipe and the communicating cylinder are communicated. Flue gas and water vapor will enter the communicating cylinder intermittently. By adjusting the rotation speed of the communicating cylinder, the amount and time of the sample entering the communicating cylinder at one time can be adjusted to meet the inspection requirements, facilitating timed sampling in small amounts and multiple times, reducing energy waste, and having a good use effect.

[0015] 2. One end of the motor is equipped with a speed reducer, and its speed can be adjusted. The faster the motor rotates, the faster the connecting cylinder rotates, and the shorter the adjacent sampling time of the sample. When the motor approaches a uniform speed, the sampling time for each time can be fixed, which is convenient for timed sampling.

[0016] 3. During the rotation of the connecting cylinder, the fan blades can rotate, and the fan blades can generate wind. The wind blows on the heat conducting plate, which can reduce the temperature of the flue gas and water vapor and cool the sample.

[0017] 4. During the rotation of the connecting cylinder, the piston head rotates inside the connecting cylinder to perform negative pressure pumping for this device, further ensuring that the flue gas and water vapor can enter the connecting cylinder.

[0018] 5. When the motor is turned off, the elastic member resets, and the piston head moves in the reverse direction in the connecting cylinder to expel the gas inside the connecting cylinder, preventing the previous sample from entering the detection device and causing errors in the results during the second detection, with good use effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is the overall structural schematic diagram of the present utility model;

[0020] Figure 2 is the overall cross-sectional view of the present utility model;

[0021] Figure 3 is the structural schematic diagram of the sampling mechanism of the present utility model;

[0022] Figure 4 is the structural schematic diagram of the connecting mechanism of the present utility model;

[0023] Figure 5 is the structural schematic diagram of the pushing mechanism of the present utility model.

[0024] In the figure: 1. Outer shell mechanism; 11. Outer shell body; 12. Motor; 13. First gear; 14. Sleeve; 2. Sampling mechanism; 21. Connecting pipe; 22. Sampling pipe; 24. Heat conducting plate; 25. First limiting plate; 26. First through hole; 3. Connecting mechanism; 31. Connecting cylinder; 32. Second limiting plate; 33. Second through hole; 34. Second gear; 35. Fan blade; 36. Stable cylinder; 37. Air outlet pipe; 4. Pushing mechanism; 41. Piston head; 42. Screw rod; 43. Special-shaped sliding block; 44. Elastic member. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The present utility model will be further described below in conjunction with specific embodiments.

[0026] Embodiment 1

[0027] As Figures 1 - 4As shown in the figure, a timing sampling device for a gas turbine unit includes a housing mechanism 1 and a sampling mechanism 2 installed at one end of the housing mechanism 1. The housing mechanism 1 includes a housing body 11, and the sampling mechanism 2 includes a connecting pipe 21 fixedly connected to the housing body 11. One end of the connecting pipe 21 is communicated and installed with a sampling pipe 22. One end of the connecting pipe 21 is fixedly installed with a heat conducting plate 24. A first limiting plate 25 is fixedly installed in the middle of the heat conducting plate 24. A first through hole 26 is opened on the first limiting plate 25. A communicating mechanism 3 is arranged inside the housing mechanism 1. The communicating mechanism 3 includes a communicating cylinder 31 rotatably installed on one side of the connecting pipe 21. One end of the communicating cylinder 31 is fixedly installed with a second limiting plate 32. A second through hole 33 is opened on the second limiting plate 32.

[0028] This device is installed at the gas turbine unit and is used for sampling and collecting flue gas and water vapor. During the sampling process, the flue gas and water vapor sequentially enter the communicating cylinder 31 through the sampling pipe 22, the connecting pipe 21, the first through hole 26, and the second through hole 33 for collection.

[0029] The second limiting plate 32 and the first limiting plate 25 are mutually attached, and the second limiting plate 32 is rotatably connected to the first limiting plate 25. The communicating cylinder 31 is driven to rotate at a constant speed. The second through hole 33 is indirectly communicated with the first through hole 26, that is, the connecting pipe 21 and the communicating cylinder 31 are communicated. The flue gas and water vapor will enter the communicating cylinder 31 indirectly. By adjusting the rotation speed of the communicating cylinder 31, the amount and time of the sample entering the inside of the communicating cylinder 31 at one time can be adjusted to meet the inspection requirements, facilitating timed sampling in small amounts and multiple times, reducing energy waste, and having a good use effect.

[0030] Embodiment 2

[0031] As Figures 2 - 4 shown, a motor 12 is fixedly installed on the inner wall of the housing body 11. The output end of the motor 12 is fixedly installed with a first gear 13. A sleeve 14 is also fixedly installed on the inner wall of the housing body 11. The motor 12 is the driving source of this device, and the rotation speed of the motor 12 can be adjusted. The speed directly affects the sampling interval time of this device.

[0032] The communicating mechanism 3 further includes a second gear 34 fixedly installed on one side of the communicating cylinder 31. The second gear 34 is meshed and connected with the first gear 13. When the motor 12 is started, the first gear 13 rotates, that is, the second gear 34 and the communicating cylinder 31 rotate, facilitating providing a driving force for sampling the flue gas and water vapor. A speed reducer is assembled at one end of the motor 12, and its rotation speed can be adjusted. The faster the rotation speed of the motor 12, the faster the rotation speed of the communicating cylinder 31, and the shorter the adjacent sampling time of the sample. When the motor 12 approaches a constant speed, the sampling time each time can be fixed, facilitating timed sampling.

[0033] One end of the second gear 34 is fixedly installed with a stabilizing cylinder 36. One end of the stabilizing cylinder 36 is rotatably connected to the sleeve 14. During the rotation of the second gear 34, the stabilizing cylinder 36 rotates within the sleeve 14, ensuring the stability of the rotation of the connecting cylinder 31.

[0034] A fan blade 35 is fixedly installed on the outer periphery of the connecting cylinder 31. During the rotation of the connecting cylinder 31, the fan blade 35 can rotate. The fan blade 35 can generate wind. The wind blows on the heat conducting plate 24, which can reduce the temperature of the flue gas and water vapor, and cool the sample. The lower end of the connecting cylinder 31 is connected and installed with an air outlet pipe 37. The gas entering the interior of the connecting cylinder 31 can be discharged into the detection device through the air outlet pipe 37, facilitating subsequent detection.

[0035] Embodiment III

[0036] As Figure 2 、 Figure 4 and Figure 5 shown, a pushing mechanism 4 is further provided inside the housing mechanism 1. The pushing mechanism 4 includes a piston head 41 slidably installed inside the connecting cylinder 31, and a screw rod 42 is fixedly installed at one end of the piston head 41.

[0037] A special-shaped sliding block 43 is fixedly installed on the outer periphery of one end of the screw rod 42. The special-shaped sliding block 43 has a special-shaped structure and can only slide back and forth in the sleeve 14 and cannot rotate. During the rotation of the second gear 34, an elastic member 44 is commonly installed between the piston head 41 and the sleeve 14.

[0038] The screw rod 42 is threadedly connected to the inner wall of the second gear 34 with a relatively large pitch. During the rotation of the connecting cylinder 31, the screw rod 42, the piston head 41, and the special-shaped sliding block 43 gradually move away from the connecting pipe 21, and the elastic member 44 is gradually compressed. The piston head 41 rotates inside the connecting cylinder 31 to perform negative pressure air extraction for this device, further ensuring that the flue gas and water vapor can enter the connecting cylinder 31. When the motor 12 is turned off, the elastic member 44 resets, and the piston head 41 moves in the reverse direction in the connecting cylinder 31 to expel the gas inside the connecting cylinder 31, preventing errors in the results generated when the previous sample enters the detection device during secondary detection, and having a good use effect.

[0039] The content not described in detail in this specification belongs to the known prior art of those skilled in the art.

[0040] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A timing sampling device for a gas turbine unit, comprising a housing mechanism (1) and a sampling mechanism (2) mounted at one end of the housing mechanism (1), characterized in that: The shell mechanism (1) comprises an outer shell (11); the sampling mechanism (2) comprises a connecting tube (21) fixedly connected to the outer shell (11); one end of the connecting tube (21) is connected to and mounted with a sampling tube (22); one end of the connecting tube (21) is fixedly mounted with a heat conducting plate (24); a first limit plate (25) is fixedly mounted in the middle of the heat conducting plate (24); a first through hole (26) is formed on the first limit plate (25); a connecting mechanism (3) is arranged inside the shell mechanism (1); the connecting mechanism (3) comprises a connecting tube (31) rotatably mounted on one side of the connecting tube (21); one end of the connecting tube (31) is fixedly mounted with a second limit plate (32); and a second through hole (33) is formed on the second limit plate (32).

2. A timing sampling device for a gas turbine unit according to claim 1, characterized in that: A motor (12) is fixedly mounted on the inner wall of the outer shell (11), a first gear (13) is fixedly mounted on the output end of the motor (12), and a sleeve (14) is also fixedly mounted on the inner wall of the outer shell (11).

3. A timing sampling device for a gas turbine unit according to claim 2, characterized in that: The connecting mechanism (3) further comprises a second gear (34) fixedly mounted on one side of the connecting tube (31), the second gear (34) being meshingly connected with the first gear (13).

4. A timing sampling device for a gas turbine unit according to claim 3, characterized in that: A stabilizing cylinder (36) is fixedly mounted on one end of the second gear (34), and one end of the stabilizing cylinder (36) is rotatably connected to the sleeve (14).

5. A timing sampling device for a gas turbine unit according to claim 1, characterized in that: The outer periphery of the connecting tube (31) is fixedly mounted with a fan blade (35), and the lower end of the connecting tube (31) is connected and mounted with an air outlet pipe (37).

6. A timing sampling device for a gas turbine unit according to claim 4, characterized in that: A pushing mechanism (4) is also provided inside the shell mechanism (1), and the pushing mechanism (4) comprises a piston head (41) slidably mounted inside the connecting tube (31), a spiral rod (42) being fixedly mounted on one end of the piston head (41), and the spiral rod (42) is slidably connected to the sleeve (14).

7. A timing sampling device for a gas turbine unit according to claim 6, characterized in that: A special-shaped sliding block (43) is fixedly mounted on the outer periphery of one end of the spiral rod (42); the special-shaped sliding block (43) is threadedly connected to the inner wall of the second gear (34); and an elastic member (44) is installed between the piston head (41) and the sleeve (14).

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